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Doctors Medicines MCQs Q&A

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Product X is produced by mixing chemical A and chemical B in the ratio of 5 : 4. Chemical A is prepared by mixing two raw materials, P and Q, in the ratio of 1 : 3. Chemical B is prepared by mixing raw materials, Q and R, in the ratio of 2 : 1. Then the final mixture is prepared by mixing 8640 units of product X with water. If the concentration of the raw material Q in the final mixture is 50%, how much water had been added to product X?
A DSB-SC signal is generated using the carrier signal cos (ωct + θ) and modulating signal m(t). What is the envelope detector output of this DSB-SC signal?
The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. Which of the following, if given to the mixing vat operator as an instruction, would not determine the setting of any other valve ?
A mixture of oils is prepared by mixing two mixtures A and B in the ratio 2 ∶ 1. Mixture A is made by mixing olive oil and jasmine oil in ratio 3 ∶ 1, while mixture B is made by mixing coconut oil and almond oil in ratio 2 ∶ 3. How much jasmine oil and coconut oil is required to prepare 750 ml of the final mixture of oils respectively?
A three-star medicine is prepared by mixing two type of fluids (A & B) in ratio of 1 : 4. Fluid A is prepared by mixing two type of water, water M and water N in ratio of 4 : 5. Fluid B is prepared by mixing two type of water, water X and water N in ratio of 3 : 7. The final mixture is prepared by 675 units of three-star medicine with water Y. If the concentration of the water N in the final mixture is 60%, then how much water Y had been added to three-star medicine?
Consider the following statements in respect of ‘mixers’ 1. Mass batch mixing of ingredients is the most desirable method. 2. Charging all materials into a drum mixer is done ‘at once’. 3. The quantity of material fed into a mixer should be not more than the quantity that can be used in less than 30 minutes after completion of mixing. 4. Reversing mixers have less capacity than tilting mixers. 5. In large mixers, additional time of mixing is allowed. Which of the above statements are correct?
Mixing Index is a ratio of the standard deviation of various products during mixing to that at zero mixing.
Which of the following filtering is done in frequency domain in correspondence to lowpass filtering in spatial domain?
P and Q invests Rs. 400 and Rs. 300 into a partnership respectively. After 5 months, P added Rs. 100 to his investment. After 4 months, P removes double the amount he added to his investment after 5 months and Q removes the same amount P added after 5 months. If the profit share of Q is Rs.429 then what is  the total profit they had in a year?
. . . . . . . . process removes fines and foreign matter, partly clay coating from the sand and partially removes the carbonaceous and organic materials from sand grains.